Feig Electronic VEK MNH2-R24-C User Manual

VEK MNH
Description of connections
VEK MNH Operating Manual v1.3 en
23 | 56
7.3 Signal outputs
VEK MNH series detectors are available in variants with relay outputs (R24) and with open collector bipolar
transistors (O24).
The relay variants are intended particularly for situations which require mechanical switches with high power
outputs.
The open collector outputs are primarily intended for applications with high switching rates and low output
power, e.g. PLC controller.
Each signal output can be inverted. In this case, when the power supply is turned on, normally open contacts
function as normally closed contacts, and vice versa. This happens by switching between open circuit and
closed circuit principle.
Loop faults can also be interpreted as loop covered or as loop free.
Status
Normally closed contact (NC)
Normally open contact (NO)
Not inverted
(open circuit)
Inverted (closed
circuit)
Not inverted
(open circuit)
Inverted (closed
circuit)
Voltage off
Detector ready, loop free
Loop covered
Loop failure
(loop covered by default, configurable as loop free with Detector Tool)
Tab. 8: Switching states of the signal outputs
7.3.1 Relay outputs with changeover contact
The relay outputs are designed as changeover contacts. This allows the contacts to be connected as
normally closed (NC) or as normally open (NO) contacts. The relays are potential-free and suitable for many
different switching modes.
The analogue outputs of the (R24) relay variants are connected to the red and yellow terminal blocks as
shown in the following illustration.
NO1
NO2
Normally open contact to output 1 or output 2
COM1
COM2
Common contact to output 1 or output 2
NC1
NC2
Normally closed contact to output 1 or output 2
Fig. 6: Relay connections 1 (yellow) and 2 (red)

Feig Electronic VEK MNH2-R24-C Specifications

General

Brand	Feig Electronic
Model	VEK MNH2-R24-C
Category	Security Sensors
Language	English